MULTI CARRIER CODE DIVISION MULTIPLE ACCESS (MC- CDMA) IS TECHNOLOGY FOR 4G WIRELESS COMMUNICATION SYSTEMS
Keywords:
BER, MC-CDMA, STBC, OFDM and PAPR.Abstract
Space Time Block Code Multi Carrier Code Division Multiple Access (STBC MC-CDMA) is a promising innovation for 4G remote correspondence frameworks. STBC is an exceptional type of Multiple Input Multiple Output (MIMO) initially utilized for 2 transmit reception apparatuses (NT) and 1 get recieving wire (NR) by Alamouti under level blurring conditions. So use of STBC to recurrence particular channel is testing and has pulled in consideration of numerous specialists. Consequently, STBC is coordinated with multicarrier strategies, for example, Orthogonal Frequency Division Multiplexing (OFDM) and Multi Carrier Code Division Multiple Access (MC-CDMA), which change over recurrence particular channel to a few level blurring channels accordingly wiping out ISI and thusly need of balance. Like all other multicarrier systems STBC MC-CDMA additionally experiences high Peak-to-Average Power (PAPR) issue. To battle the issue of high PAPR, numerous systems have been proposed, among which Partial Transmit Sequence (PTS) is thought to be the best PAPR decrease conspire however at an expense of high computational multifaceted nature. This paper basically focuses on execution of PTS procedure to STBC MC-CDMA plan for downlink situation. Likewise, a low intricacy recipient is intended for the above plan where the balance is done in time area premise. Likewise the proposed STBC MC-CDMA with PTS plan is contrasted and Single Input Single Output (SISO) MC-CDMA with PTS plan as far as Complementary Cumulative Distribution Function (CCDF) and Bit Error Rate (BER) execution. The reproduction results confirm that STBC MC-CDMA beats SISO MC-CDMA under blurring conditions. Likewise as the no of clients build, CCDF execution enhances and BER execution debases.